ABSTRACT
This chapter focuses on AIS data processing to estimate the spatial distribution and intensity of dredging metiers (the association of a fishing gear type with a target species) with high spatial resolution. In response to a request made by local fishermen, an experiment was conducted in the Bay of Brest. It develops the material and methods, before presenting the main results of the data analyses applied to our case study. The chapter presents the dataset and then detail the three-step method used to map fishing grounds and evaluates fishing intensity. It explores the feasibility of providing information on the intra-annual variability of spatio-temporal fishing for dredge metiers at a fine spatial scale using AIS data. The chapter identifies and assigns daily metiers for each fishing trip; and differentiates between fishing and non-fishing activities. It identifies fishing grounds and estimates the fishing intensities.
